<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像-->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 表单-->
      <el-form ref="loginFormRef" class="login_form" :model="loginForm" :rules="loginFormRules">
        <!--用户名-->
        <el-form-item prop="username">
          <el-input prefix-icon="el-icon-user-solid" v-model="loginForm.username">
          </el-input>
        </el-form-item>
        <!--密码-->
        <el-form-item prop="password">
          <el-input prefix-icon="el-icon-star-on" v-model="loginForm.password" type="password">
          </el-input>
        </el-form-item>
        <!--按钮-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetloginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 登录表单数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456',
      },
      //  表单验证规则
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
      },
    }
  },
  methods: {
    // 重置按钮
    resetloginForm() {
      // console.log(this);
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        // console.log(valid);
        if (!valid) return;
        const { data: res } = await this.$http.post("login", this.loginForm);
        // console.log(res);
        if (res.meta.status !== 200)
          return this.$message.error('登录失败')
        this.$message.success('登录成功')

        // console.log(res) 保存token至sessionStrorage中
        window.sessionStorage.setItem("token", res.data.token);
        // 跳转
        this.$router.push("/home");
      });
    }
  }
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #111;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;
    position: absolute;
    left: 50%;
    top: 0%;
    transform: translate(-50%, -50%);

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>